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Added libspe2 parallel Cell SPE support contribution by IBM Germany 'Extreme Blue' project:

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Thanks to Benjamin Hoeferlin, Minh Cuong Tran,Martina Huellmann,Frederick Roth.
This commit is contained in:
ejcoumans
2007-09-26 23:35:47 +00:00
parent b2b2ea71c6
commit 0ff4444118
3 changed files with 334 additions and 248 deletions
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213
Extras/BulletMultiThreaded/SpuDoubleBuffer.h
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@@ -1,106 +1,107 @@
#ifndef DOUBLE_BUFFER_H
#define DOUBLE_BUFFER_H
#include "SpuFakeDma.h"
///DoubleBuffer
template<class T, int size>
class DoubleBuffer
{
#ifdef __CELLOS_LV2__
T m_buffer0[size] __attribute__ ((aligned (128)));
T m_buffer1[size] __attribute__ ((aligned (128)));
#else
T m_buffer0[size];
T m_buffer1[size];
#endif
T *m_frontBuffer;
T *m_backBuffer;
unsigned int m_dmaTag;
bool m_dmaPending;
public:
bool isPending() const { return m_dmaPending;}
DoubleBuffer();
void init ();
// dma get and put commands
void backBufferDmaGet(uint64_t ea, unsigned int numBytes, unsigned int tag);
void backBufferDmaPut(uint64_t ea, unsigned int numBytes, unsigned int tag);
// gets pointer to a buffer
T *getFront();
T *getBack();
// if back buffer dma was started, wait for it to complete
// then move back to front and vice versa
T *swapBuffers();
};
template<class T, int size>
DoubleBuffer<T,size>::DoubleBuffer()
{
init ();
}
template<class T, int size>
void DoubleBuffer<T,size>::init()
{
this->m_dmaPending = false;
this->m_frontBuffer = &this->m_buffer0[0];
this->m_backBuffer = &this->m_buffer1[0];
}
template<class T, int size>
void
DoubleBuffer<T,size>::backBufferDmaGet(uint64_t ea, unsigned int numBytes, unsigned int tag)
{
m_dmaPending = true;
m_dmaTag = tag;
cellDmaLargeGet(m_backBuffer, ea, numBytes, tag, 0, 0);
}
template<class T, int size>
void
DoubleBuffer<T,size>::backBufferDmaPut(uint64_t ea, unsigned int numBytes, unsigned int tag)
{
m_dmaPending = true;
m_dmaTag = tag;
cellDmaLargePut(m_backBuffer, ea, numBytes, tag, 0, 0);
}
template<class T, int size>
T *
DoubleBuffer<T,size>::getFront()
{
return m_frontBuffer;
}
template<class T, int size>
T *
DoubleBuffer<T,size>::getBack()
{
return m_backBuffer;
}
template<class T, int size>
T *
DoubleBuffer<T,size>::swapBuffers()
{
if (m_dmaPending)
{
cellDmaWaitTagStatusAll(1<<m_dmaTag);
m_dmaPending = false;
}
T *tmp = m_backBuffer;
m_backBuffer = m_frontBuffer;
m_frontBuffer = tmp;
return m_frontBuffer;
}
#endif
#ifndef DOUBLE_BUFFER_H
#define DOUBLE_BUFFER_H
#include "SpuFakeDma.h"
#include <LinearMath/btScalar.h>
///DoubleBuffer
template<class T, int size>
class DoubleBuffer
{
#if defined(__CELLOS_LV2__) || defined(USE_LIBSPE2)
ATTRIBUTE_ALIGNED128( T m_buffer0[size] ) ;
ATTRIBUTE_ALIGNED128( T m_buffer1[size] ) ;
#else
T m_buffer0[size];
T m_buffer1[size];
#endif
T *m_frontBuffer;
T *m_backBuffer;
unsigned int m_dmaTag;
bool m_dmaPending;
public:
bool isPending() const { return m_dmaPending;}
DoubleBuffer();
void init ();
// dma get and put commands
void backBufferDmaGet(uint64_t ea, unsigned int numBytes, unsigned int tag);
void backBufferDmaPut(uint64_t ea, unsigned int numBytes, unsigned int tag);
// gets pointer to a buffer
T *getFront();
T *getBack();
// if back buffer dma was started, wait for it to complete
// then move back to front and vice versa
T *swapBuffers();
};
template<class T, int size>
DoubleBuffer<T,size>::DoubleBuffer()
{
init ();
}
template<class T, int size>
void DoubleBuffer<T,size>::init()
{
this->m_dmaPending = false;
this->m_frontBuffer = &this->m_buffer0[0];
this->m_backBuffer = &this->m_buffer1[0];
}
template<class T, int size>
void
DoubleBuffer<T,size>::backBufferDmaGet(uint64_t ea, unsigned int numBytes, unsigned int tag)
{
m_dmaPending = true;
m_dmaTag = tag;
cellDmaLargeGet(m_backBuffer, ea, numBytes, tag, 0, 0);
}
template<class T, int size>
void
DoubleBuffer<T,size>::backBufferDmaPut(uint64_t ea, unsigned int numBytes, unsigned int tag)
{
m_dmaPending = true;
m_dmaTag = tag;
cellDmaLargePut(m_backBuffer, ea, numBytes, tag, 0, 0);
}
template<class T, int size>
T *
DoubleBuffer<T,size>::getFront()
{
return m_frontBuffer;
}
template<class T, int size>
T *
DoubleBuffer<T,size>::getBack()
{
return m_backBuffer;
}
template<class T, int size>
T *
DoubleBuffer<T,size>::swapBuffers()
{
if (m_dmaPending)
{
cellDmaWaitTagStatusAll(1<<m_dmaTag);
m_dmaPending = false;
}
T *tmp = m_backBuffer;
m_backBuffer = m_frontBuffer;
m_frontBuffer = tmp;
return m_frontBuffer;
}
#endif